bc: Upgrade to version 3.3.0

This update changes the behavior of "-e" or "-f" in BC_ENV_ARGS:

Use of these options on the command line makes bc exit after executing
the given commands. These options will not cause bc to exit when
passed via the environment (but EOF in STDIN or -e or -f on the
command line will make bc exit as before).

The same applies to DC_ENV_ARGS with regard to the dc program.

(cherry picked from commit 9a995fe186257315e7b3d01e24c55d86bb18fd32)

82 files changed, 1262 insertions, 502 deletions

diff --git a/contrib/bc/Makefile.in b/contrib/bc/Makefile.in
index 8ae982bd99fe..dbb5debd44cc 100644
--- a/contrib/bc/Makefile.in
+++ b/contrib/bc/Makefile.in
@@ -29,7 +29,7 @@
 #
 .POSIX:
 
-VERSION = 3.2.6
+VERSION = 3.3.0
 
 SRC = %%SRC%%
 OBJ = %%OBJ%%
diff --git a/contrib/bc/NEWS.md b/contrib/bc/NEWS.md
index 5982defb754c..6a8899200f4a 100644
--- a/contrib/bc/NEWS.md
+++ b/contrib/bc/NEWS.md
@@ -1,5 +1,25 @@
 # News
 
+## 3.3.0
+
+This is a production release that changes one behavior and fixes documentation
+bugs.
+
+The changed behavior is the treatment of `-e` and `-f` when given through
+`BC_ENV_ARGS` or `DC_ENV_ARGS`. Now `bc` and `dc` do not exit when those options
+(or their equivalents) are given through those environment variables. However,
+`bc` and `dc` still exit when they or their equivalents are given on the
+command-line.
+
+## 3.2.7
+
+This is a production release that removes a small non-portable shell operation
+in `configure.sh`. This problem was only noticed on OpenBSD, not FreeBSD or
+Linux.
+
+Non-OpenBSD users do ***NOT*** need to upgrade, although NetBSD users may also
+need to upgrade.
+
 ## 3.2.6
 
 This is a production release that fixes the build on FreeBSD.
diff --git a/contrib/bc/README.md b/contrib/bc/README.md
index beda88d23f90..2f95e16ed246 100644
--- a/contrib/bc/README.md
+++ b/contrib/bc/README.md
@@ -342,7 +342,7 @@ Folders:
 [20]: https://git.yzena.com/gavin/bc
 [21]: https://gavinhoward.com/2020/04/i-am-moving-away-from-github/
 [22]: https://www.deepl.com/translator
-[23]: https://svnweb.freebsd.org/base/head/contrib/bc/
+[23]: https://cgit.freebsd.org/src/tree/contrib/bc
 [24]: https://bugs.freebsd.org/
 [25]: https://reviews.freebsd.org/
 [26]: ./manuals/bcl.3.md
diff --git a/contrib/bc/configure.sh b/contrib/bc/configure.sh
index ae1675cde97d..310c26882906 100755
--- a/contrib/bc/configure.sh
+++ b/contrib/bc/configure.sh
@@ -253,7 +253,7 @@ replace_ext() {
 	_replace_ext_ext1="$2"
 	_replace_ext_ext2="$3"
 
-	_replace_ext_result=${_replace_ext_file%.$_replace_ext_ext1}.$_replace_ext_ext2
+	_replace_ext_result="${_replace_ext_file%.$_replace_ext_ext1}.$_replace_ext_ext2"
 
 	printf '%s\n' "$_replace_ext_result"
 }
@@ -1199,17 +1199,12 @@ SRC_TARGETS=""
 
 src_files=$(find_src_files $unneeded)
 
-temp_ifs="$IFS"
-IFS=$'\n'
-
 for f in $src_files; do
 	o=$(replace_ext "$f" "c" "o")
 	SRC_TARGETS=$(printf '%s\n\n%s: %s %s\n\t$(CC) $(CFLAGS) -o %s -c %s\n' \
 		"$SRC_TARGETS" "$o" "$headers" "$f" "$o" "$f")
 done
 
-IFS="$temp_ifs"
-
 contents=$(replace "$contents" "HEADERS" "$headers")
 
 contents=$(replace "$contents" "BC_ENABLED" "$bc")
diff --git a/contrib/bc/include/args.h b/contrib/bc/include/args.h
index 6b68ed300440..d53785067237 100644
--- a/contrib/bc/include/args.h
+++ b/contrib/bc/include/args.h
@@ -39,7 +39,7 @@
 #include <status.h>
 #include <vm.h>
 
-void bc_args(int argc, char *argv[]);
+void bc_args(int argc, char *argv[], bool exit_exprs);
 
 extern const char* const bc_args_env_name;
 
diff --git a/contrib/bc/include/status.h b/contrib/bc/include/status.h
index 3fa844485690..cf41a3ce4670 100644
--- a/contrib/bc/include/status.h
+++ b/contrib/bc/include/status.h
@@ -176,11 +176,15 @@ typedef enum BcErr {
 #endif // __STDC_VERSION__
 
 #if defined(__clang__) || defined(__GNUC__)
-#if defined(__has_attribute) && __has_attribute(fallthrough)
+#if defined(__has_attribute)
+#if __has_attribute(fallthrough)
 #define BC_FALLTHROUGH __attribute__((fallthrough));
-#else // defined(__has_attribute) && __has_attribute(fallthrough)
+#else // __has_attribute(fallthrough)
 #define BC_FALLTHROUGH
-#endif // defined(__has_attribute) && __has_attribute(fallthrough)
+#endif // __has_attribute(fallthrough)
+#else // defined(__has_attribute)
+#define BC_FALLTHROUGH
+#endif // defined(__has_attribute)
 #else // defined(__clang__) || defined(__GNUC__)
 #define BC_FALLTHROUGH
 #endif // defined(__clang__) || defined(__GNUC__)
diff --git a/contrib/bc/include/vm.h b/contrib/bc/include/vm.h
index 8b0babff4d81..80a060edd42f 100644
--- a/contrib/bc/include/vm.h
+++ b/contrib/bc/include/vm.h
@@ -356,6 +356,7 @@ typedef struct BcVm {
 	uint16_t line_len;
 
 	bool no_exit_exprs;
+	bool exit_exprs;
 	bool eof;
 #endif // !BC_ENABLE_LIBRARY
 
diff --git a/contrib/bc/manuals/bc.1.md.in b/contrib/bc/manuals/bc.1.md.in
index 624ea3fb54ab..1ce83b8237cd 100644
--- a/contrib/bc/manuals/bc.1.md.in
+++ b/contrib/bc/manuals/bc.1.md.in
@@ -229,10 +229,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -242,8 +245,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -251,7 +258,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/A.1 b/contrib/bc/manuals/bc/A.1
index da35e8c7eaee..d1e80769c855 100644
--- a/contrib/bc/manuals/bc/A.1
+++ b/contrib/bc/manuals/bc/A.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -230,12 +230,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -247,9 +251,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -258,6 +268,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/A.1.md b/contrib/bc/manuals/bc/A.1.md
index 293a21ad0259..0cf7a4a0d70e 100644
--- a/contrib/bc/manuals/bc/A.1.md
+++ b/contrib/bc/manuals/bc/A.1.md
@@ -187,10 +187,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -200,8 +203,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -209,7 +216,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/E.1 b/contrib/bc/manuals/bc/E.1
index 02a56e6c653c..597cde782788 100644
--- a/contrib/bc/manuals/bc/E.1
+++ b/contrib/bc/manuals/bc/E.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -192,12 +192,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -209,9 +213,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -220,6 +230,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/E.1.md b/contrib/bc/manuals/bc/E.1.md
index 7cbc1a56548a..864cf32068bf 100644
--- a/contrib/bc/manuals/bc/E.1.md
+++ b/contrib/bc/manuals/bc/E.1.md
@@ -171,10 +171,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -184,8 +187,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -193,7 +200,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/EH.1 b/contrib/bc/manuals/bc/EH.1
index 8cb2a3bc8335..dca77a99162e 100644
--- a/contrib/bc/manuals/bc/EH.1
+++ b/contrib/bc/manuals/bc/EH.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -189,12 +189,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -206,9 +210,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -217,6 +227,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/EH.1.md b/contrib/bc/manuals/bc/EH.1.md
index 351882878cd3..c1e324ab6ebc 100644
--- a/contrib/bc/manuals/bc/EH.1.md
+++ b/contrib/bc/manuals/bc/EH.1.md
@@ -168,10 +168,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -181,8 +184,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -190,7 +197,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/EHN.1 b/contrib/bc/manuals/bc/EHN.1
index f751f9d31beb..6b208ade85fd 100644
--- a/contrib/bc/manuals/bc/EHN.1
+++ b/contrib/bc/manuals/bc/EHN.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -189,12 +189,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -206,9 +210,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -217,6 +227,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/EHN.1.md b/contrib/bc/manuals/bc/EHN.1.md
index dfe1c401970f..4ee01a4bbcc8 100644
--- a/contrib/bc/manuals/bc/EHN.1.md
+++ b/contrib/bc/manuals/bc/EHN.1.md
@@ -168,10 +168,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -181,8 +184,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -190,7 +197,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/EHNP.1 b/contrib/bc/manuals/bc/EHNP.1
index e25cd1a7da42..7bd46f38e104 100644
--- a/contrib/bc/manuals/bc/EHNP.1
+++ b/contrib/bc/manuals/bc/EHNP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -184,12 +184,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -201,9 +205,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -212,6 +222,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/EHNP.1.md b/contrib/bc/manuals/bc/EHNP.1.md
index e55673769736..8aca89e6f7b0 100644
--- a/contrib/bc/manuals/bc/EHNP.1.md
+++ b/contrib/bc/manuals/bc/EHNP.1.md
@@ -164,10 +164,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -177,8 +180,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -186,7 +193,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/EHP.1 b/contrib/bc/manuals/bc/EHP.1
index 7f35d1a1be7f..31c02f1b9591 100644
--- a/contrib/bc/manuals/bc/EHP.1
+++ b/contrib/bc/manuals/bc/EHP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -184,12 +184,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -201,9 +205,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -212,6 +222,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/EHP.1.md b/contrib/bc/manuals/bc/EHP.1.md
index 11050003420f..2c9ab3909dd6 100644
--- a/contrib/bc/manuals/bc/EHP.1.md
+++ b/contrib/bc/manuals/bc/EHP.1.md
@@ -164,10 +164,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -177,8 +180,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -186,7 +193,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/EN.1 b/contrib/bc/manuals/bc/EN.1
index c8e3a327b2f8..faa6bf488e28 100644
--- a/contrib/bc/manuals/bc/EN.1
+++ b/contrib/bc/manuals/bc/EN.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -192,12 +192,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -209,9 +213,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -220,6 +230,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/EN.1.md b/contrib/bc/manuals/bc/EN.1.md
index 950a00c4cd3d..c82779aa6818 100644
--- a/contrib/bc/manuals/bc/EN.1.md
+++ b/contrib/bc/manuals/bc/EN.1.md
@@ -171,10 +171,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -184,8 +187,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -193,7 +200,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/ENP.1 b/contrib/bc/manuals/bc/ENP.1
index 2116cc69d38d..7334888bb012 100644
--- a/contrib/bc/manuals/bc/ENP.1
+++ b/contrib/bc/manuals/bc/ENP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -187,12 +187,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -204,9 +208,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -215,6 +225,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/ENP.1.md b/contrib/bc/manuals/bc/ENP.1.md
index 20c380dd1bb2..711e3161c162 100644
--- a/contrib/bc/manuals/bc/ENP.1.md
+++ b/contrib/bc/manuals/bc/ENP.1.md
@@ -167,10 +167,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -180,8 +183,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -189,7 +196,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/EP.1 b/contrib/bc/manuals/bc/EP.1
index 2213f7fd3141..ba27d5cc4862 100644
--- a/contrib/bc/manuals/bc/EP.1
+++ b/contrib/bc/manuals/bc/EP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -187,12 +187,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -204,9 +208,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -215,6 +225,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/EP.1.md b/contrib/bc/manuals/bc/EP.1.md
index d60706d46d91..fe6107ce86d7 100644
--- a/contrib/bc/manuals/bc/EP.1.md
+++ b/contrib/bc/manuals/bc/EP.1.md
@@ -167,10 +167,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -180,8 +183,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -189,7 +196,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/H.1 b/contrib/bc/manuals/bc/H.1
index df3fdf974c82..fb824377e4f1 100644
--- a/contrib/bc/manuals/bc/H.1
+++ b/contrib/bc/manuals/bc/H.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -225,12 +225,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -242,9 +246,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -253,6 +263,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/H.1.md b/contrib/bc/manuals/bc/H.1.md
index 476bc32019b2..f663b8008c4a 100644
--- a/contrib/bc/manuals/bc/H.1.md
+++ b/contrib/bc/manuals/bc/H.1.md
@@ -183,10 +183,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -196,8 +199,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -205,7 +212,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/HN.1 b/contrib/bc/manuals/bc/HN.1
index f4b78449838c..0dbb8208f1fa 100644
--- a/contrib/bc/manuals/bc/HN.1
+++ b/contrib/bc/manuals/bc/HN.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -225,12 +225,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -242,9 +246,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -253,6 +263,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/HN.1.md b/contrib/bc/manuals/bc/HN.1.md
index 979e0510822f..cab2e5773219 100644
--- a/contrib/bc/manuals/bc/HN.1.md
+++ b/contrib/bc/manuals/bc/HN.1.md
@@ -183,10 +183,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -196,8 +199,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -205,7 +212,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/HNP.1 b/contrib/bc/manuals/bc/HNP.1
index 7b1f36a3866b..11a8dc2a521f 100644
--- a/contrib/bc/manuals/bc/HNP.1
+++ b/contrib/bc/manuals/bc/HNP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -220,12 +220,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -237,9 +241,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -248,6 +258,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/HNP.1.md b/contrib/bc/manuals/bc/HNP.1.md
index 608cca1f4c21..33feb013e6cf 100644
--- a/contrib/bc/manuals/bc/HNP.1.md
+++ b/contrib/bc/manuals/bc/HNP.1.md
@@ -179,10 +179,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -192,8 +195,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -201,7 +208,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/HP.1 b/contrib/bc/manuals/bc/HP.1
index 617987fbf743..06a46ba5629a 100644
--- a/contrib/bc/manuals/bc/HP.1
+++ b/contrib/bc/manuals/bc/HP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -220,12 +220,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -237,9 +241,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -248,6 +258,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/HP.1.md b/contrib/bc/manuals/bc/HP.1.md
index 71bc1ff72c09..7919854a4b5e 100644
--- a/contrib/bc/manuals/bc/HP.1.md
+++ b/contrib/bc/manuals/bc/HP.1.md
@@ -179,10 +179,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -192,8 +195,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -201,7 +208,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/N.1 b/contrib/bc/manuals/bc/N.1
index 70e8a4945a2b..0b94f9562d91 100644
--- a/contrib/bc/manuals/bc/N.1
+++ b/contrib/bc/manuals/bc/N.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -230,12 +230,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -247,9 +251,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -258,6 +268,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/N.1.md b/contrib/bc/manuals/bc/N.1.md
index 7d7d008fc31c..0a34edb66f2a 100644
--- a/contrib/bc/manuals/bc/N.1.md
+++ b/contrib/bc/manuals/bc/N.1.md
@@ -187,10 +187,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -200,8 +203,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -209,7 +216,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/NP.1 b/contrib/bc/manuals/bc/NP.1
index 0e45d6dcab62..a89f6ec17271 100644
--- a/contrib/bc/manuals/bc/NP.1
+++ b/contrib/bc/manuals/bc/NP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -225,12 +225,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -242,9 +246,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -253,6 +263,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/NP.1.md b/contrib/bc/manuals/bc/NP.1.md
index b948badbf5e7..4aa6923b7494 100644
--- a/contrib/bc/manuals/bc/NP.1.md
+++ b/contrib/bc/manuals/bc/NP.1.md
@@ -183,10 +183,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -196,8 +199,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -205,7 +212,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bc/P.1 b/contrib/bc/manuals/bc/P.1
index 24fd54bcfecc..dc59aa11d961 100644
--- a/contrib/bc/manuals/bc/P.1
+++ b/contrib/bc/manuals/bc/P.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH NAME
 .PP
 bc - arbitrary-precision decimal arithmetic language and calculator
@@ -225,12 +225,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]BC_ENV_ARGS\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -242,9 +246,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, bc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]BC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, bc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, bc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -253,6 +263,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other bc(1) implementations, this bc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
diff --git a/contrib/bc/manuals/bc/P.1.md b/contrib/bc/manuals/bc/P.1.md
index d69e83ab0fc7..7e6dcee4747d 100644
--- a/contrib/bc/manuals/bc/P.1.md
+++ b/contrib/bc/manuals/bc/P.1.md
@@ -183,10 +183,13 @@ The following are the options that bc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **BC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -196,8 +199,12 @@ The following are the options that bc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, bc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **BC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, bc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, bc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -205,7 +212,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other bc(1) implementations, this bc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
diff --git a/contrib/bc/manuals/bcl.3 b/contrib/bc/manuals/bcl.3
index 2d265a20511a..99040581a153 100644
--- a/contrib/bc/manuals/bcl.3
+++ b/contrib/bc/manuals/bcl.3
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BCL" "3" "January 2021" "Gavin D. Howard" "Libraries Manual"
+.TH "BCL" "3" "February 2021" "Gavin D. Howard" "Libraries Manual"
 .SH NAME
 .PP
 bcl - library of arbitrary precision decimal arithmetic
diff --git a/contrib/bc/manuals/build.md b/contrib/bc/manuals/build.md
index 47fbabdfad7f..a58da6d427ed 100644
--- a/contrib/bc/manuals/build.md
+++ b/contrib/bc/manuals/build.md
@@ -164,6 +164,22 @@ Can be overridden by passing the `--bindir` option to `configure.sh`.
 
 Defaults to `$PREFIX/bin`.
 
+### `INCLUDEDIR`
+
+The directory to install header files in.
+
+Can be overridden by passing the `--includedir` option to `configure.sh`.
+
+Defaults to `$PREFIX/include`.
+
+### `LIBDIR`
+
+The directory to install libraries in.
+
+Can be overridden by passing the `--libdir` option to `configure.sh`.
+
+Defaults to `$PREFIX/lib`.
+
 ### `DATAROOTDIR`
 
 The root directory to install data files in.
diff --git a/contrib/bc/manuals/dc.1.md.in b/contrib/bc/manuals/dc.1.md.in
index 72071df06421..b00eff17471e 100644
--- a/contrib/bc/manuals/dc.1.md.in
+++ b/contrib/bc/manuals/dc.1.md.in
@@ -106,8 +106,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -117,10 +122,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -128,7 +135,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -209,7 +218,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1073,7 +1082,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/A.1 b/contrib/bc/manuals/dc/A.1
index 0f1e877cc2e0..2fc16a5b8b73 100644
--- a/contrib/bc/manuals/dc/A.1
+++ b/contrib/bc/manuals/dc/A.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -235,7 +248,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1164,7 +1177,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/A.1.md b/contrib/bc/manuals/dc/A.1.md
index 6b278ede8ad0..0c4fd2b9ef13 100644
--- a/contrib/bc/manuals/dc/A.1.md
+++ b/contrib/bc/manuals/dc/A.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -198,7 +207,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1033,7 +1042,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/E.1 b/contrib/bc/manuals/dc/E.1
index 612187d62353..54b77232d76e 100644
--- a/contrib/bc/manuals/dc/E.1
+++ b/contrib/bc/manuals/dc/E.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -959,7 +972,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/E.1.md b/contrib/bc/manuals/dc/E.1.md
index 74011dfd332f..b7cc625df362 100644
--- a/contrib/bc/manuals/dc/E.1.md
+++ b/contrib/bc/manuals/dc/E.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -868,7 +877,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/EH.1 b/contrib/bc/manuals/dc/EH.1
index 04006d873958..986e686239e4 100644
--- a/contrib/bc/manuals/dc/EH.1
+++ b/contrib/bc/manuals/dc/EH.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -959,7 +972,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/EH.1.md b/contrib/bc/manuals/dc/EH.1.md
index 0fe5bd455ecf..0f6df3e6f474 100644
--- a/contrib/bc/manuals/dc/EH.1.md
+++ b/contrib/bc/manuals/dc/EH.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -868,7 +877,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/EHN.1 b/contrib/bc/manuals/dc/EHN.1
index d6d821627ed5..0b8d34cfa25f 100644
--- a/contrib/bc/manuals/dc/EHN.1
+++ b/contrib/bc/manuals/dc/EHN.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -959,7 +972,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/EHN.1.md b/contrib/bc/manuals/dc/EHN.1.md
index a510e6e64de3..361d641b50b2 100644
--- a/contrib/bc/manuals/dc/EHN.1.md
+++ b/contrib/bc/manuals/dc/EHN.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -868,7 +877,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/EHNP.1 b/contrib/bc/manuals/dc/EHNP.1
index 9f331a30e310..c4e2acf5544e 100644
--- a/contrib/bc/manuals/dc/EHNP.1
+++ b/contrib/bc/manuals/dc/EHNP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -954,7 +967,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/EHNP.1.md b/contrib/bc/manuals/dc/EHNP.1.md
index d21343137a5f..acbd58e543dc 100644
--- a/contrib/bc/manuals/dc/EHNP.1.md
+++ b/contrib/bc/manuals/dc/EHNP.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -865,7 +874,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/EHP.1 b/contrib/bc/manuals/dc/EHP.1
index 8a635ed5780f..2ac14f02bf45 100644
--- a/contrib/bc/manuals/dc/EHP.1
+++ b/contrib/bc/manuals/dc/EHP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -954,7 +967,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/EHP.1.md b/contrib/bc/manuals/dc/EHP.1.md
index e4ec08ad0ba4..982570c9c999 100644
--- a/contrib/bc/manuals/dc/EHP.1.md
+++ b/contrib/bc/manuals/dc/EHP.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -865,7 +874,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/EN.1 b/contrib/bc/manuals/dc/EN.1
index cc2dd3fcea0e..c38435ea86d8 100644
--- a/contrib/bc/manuals/dc/EN.1
+++ b/contrib/bc/manuals/dc/EN.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -959,7 +972,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/EN.1.md b/contrib/bc/manuals/dc/EN.1.md
index 0fa12db39760..4df214965ac5 100644
--- a/contrib/bc/manuals/dc/EN.1.md
+++ b/contrib/bc/manuals/dc/EN.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -868,7 +877,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/ENP.1 b/contrib/bc/manuals/dc/ENP.1
index 4bdafbb469a2..aea2ec6a6c39 100644
--- a/contrib/bc/manuals/dc/ENP.1
+++ b/contrib/bc/manuals/dc/ENP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -954,7 +967,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/ENP.1.md b/contrib/bc/manuals/dc/ENP.1.md
index 708ddf4e957e..f88b418e3bfe 100644
--- a/contrib/bc/manuals/dc/ENP.1.md
+++ b/contrib/bc/manuals/dc/ENP.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -865,7 +874,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/EP.1 b/contrib/bc/manuals/dc/EP.1
index 7419872596f8..1e16db4a3d47 100644
--- a/contrib/bc/manuals/dc/EP.1
+++ b/contrib/bc/manuals/dc/EP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -954,7 +967,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/EP.1.md b/contrib/bc/manuals/dc/EP.1.md
index 30a55b4074bf..a64d49b13433 100644
--- a/contrib/bc/manuals/dc/EP.1.md
+++ b/contrib/bc/manuals/dc/EP.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -865,7 +874,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/H.1 b/contrib/bc/manuals/dc/H.1
index 9eabf89b6f07..5c09b430db8e 100644
--- a/contrib/bc/manuals/dc/H.1
+++ b/contrib/bc/manuals/dc/H.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -235,7 +248,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1164,7 +1177,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/H.1.md b/contrib/bc/manuals/dc/H.1.md
index 102ef2e74e6d..aff75f379e10 100644
--- a/contrib/bc/manuals/dc/H.1.md
+++ b/contrib/bc/manuals/dc/H.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -198,7 +207,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1033,7 +1042,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/HN.1 b/contrib/bc/manuals/dc/HN.1
index a3bf02dcd2b5..38efef021c64 100644
--- a/contrib/bc/manuals/dc/HN.1
+++ b/contrib/bc/manuals/dc/HN.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -235,7 +248,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1164,7 +1177,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/HN.1.md b/contrib/bc/manuals/dc/HN.1.md
index fb225f2f9558..6248037980d9 100644
--- a/contrib/bc/manuals/dc/HN.1.md
+++ b/contrib/bc/manuals/dc/HN.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -198,7 +207,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1033,7 +1042,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/HNP.1 b/contrib/bc/manuals/dc/HNP.1
index 1bb8ea6a2de8..bb103564f3ca 100644
--- a/contrib/bc/manuals/dc/HNP.1
+++ b/contrib/bc/manuals/dc/HNP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -230,7 +243,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1159,7 +1172,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/HNP.1.md b/contrib/bc/manuals/dc/HNP.1.md
index 78c37f2a177e..54d5957b6d93 100644
--- a/contrib/bc/manuals/dc/HNP.1.md
+++ b/contrib/bc/manuals/dc/HNP.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -195,7 +204,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1030,7 +1039,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/HP.1 b/contrib/bc/manuals/dc/HP.1
index 51d477f4a8e7..abbf1b24da1d 100644
--- a/contrib/bc/manuals/dc/HP.1
+++ b/contrib/bc/manuals/dc/HP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -230,7 +243,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1159,7 +1172,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/HP.1.md b/contrib/bc/manuals/dc/HP.1.md
index d9865db53bdf..25e690f6f0e5 100644
--- a/contrib/bc/manuals/dc/HP.1.md
+++ b/contrib/bc/manuals/dc/HP.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -195,7 +204,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1030,7 +1039,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/N.1 b/contrib/bc/manuals/dc/N.1
index 8f4718490813..e257c79bc9b7 100644
--- a/contrib/bc/manuals/dc/N.1
+++ b/contrib/bc/manuals/dc/N.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -116,9 +116,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -130,12 +137,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -144,6 +154,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -235,7 +248,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1164,7 +1177,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/N.1.md b/contrib/bc/manuals/dc/N.1.md
index a79c482c8244..1d9d1d6f64ed 100644
--- a/contrib/bc/manuals/dc/N.1.md
+++ b/contrib/bc/manuals/dc/N.1.md
@@ -101,8 +101,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -112,10 +117,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -123,7 +130,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -198,7 +207,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1033,7 +1042,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/NP.1 b/contrib/bc/manuals/dc/NP.1
index 30e6333389c6..7c799d0ee25b 100644
--- a/contrib/bc/manuals/dc/NP.1
+++ b/contrib/bc/manuals/dc/NP.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -230,7 +243,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1159,7 +1172,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/NP.1.md b/contrib/bc/manuals/dc/NP.1.md
index 74057fb80afc..60cc89078876 100644
--- a/contrib/bc/manuals/dc/NP.1.md
+++ b/contrib/bc/manuals/dc/NP.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -195,7 +204,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1030,7 +1039,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/dc/P.1 b/contrib/bc/manuals/dc/P.1
index dbbee3e905c0..b28e0dadda48 100644
--- a/contrib/bc/manuals/dc/P.1
+++ b/contrib/bc/manuals/dc/P.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
 .SH Name
 .PP
 dc - arbitrary-precision decimal reverse-Polish notation calculator
@@ -111,9 +111,16 @@ This means that if a file is given before an expression, the file is
 read in and evaluated first.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
-\f[B]-f\f[R] or \f[B]\[en]file\f[R].
+\f[B]-f\f[R] or \f[B]\[en]file\f[R], whether on the command-line or in
+\f[B]DC_ENV_ARGS\f[R].
+However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -125,12 +132,15 @@ If expressions are also given (see above), the expressions are evaluated
 in the order given.
 .RS
 .PP
-After processing all expressions and files, dc(1) will exit, unless
+If this option is given on the command-line (i.e., not in
+\f[B]DC_ENV_ARGS\f[R], see the \f[B]ENVIRONMENT VARIABLES\f[R] section),
+then after processing all expressions and files, dc(1) will exit, unless
 \f[B]-\f[R] (\f[B]stdin\f[R]) was given as an argument at least once to
 \f[B]-f\f[R] or \f[B]\[en]file\f[R].
 However, if any other \f[B]-e\f[R], \f[B]\[en]expression\f[R],
-\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after that,
-bc(1) will give a fatal error and exit.
+\f[B]-f\f[R], or \f[B]\[en]file\f[R] arguments are given after
+\f[B]-f-\f[R] or equivalent is given, dc(1) will give a fatal error and
+exit.
 .PP
 This is a \f[B]non-portable extension\f[R].
 .RE
@@ -139,6 +149,9 @@ All long options are \f[B]non-portable extensions\f[R].
 .SH STDOUT
 .PP
 Any non-error output is written to \f[B]stdout\f[R].
+In addition, if history (see the \f[B]HISTORY\f[R] section) and the
+prompt (see the \f[B]TTY MODE\f[R] section) are enabled, both are output
+to \f[B]stdout\f[R].
 .PP
 \f[B]Note\f[R]: Unlike other dc(1) implementations, this dc(1) will
 issue a fatal error (see the \f[B]EXIT STATUS\f[R] section) if it cannot
@@ -230,7 +243,7 @@ guaranteed to \f[B]NOT\f[R] be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator.
 However, they \f[I]are\f[R] guaranteed to be reproducible with identical
 \f[B]seed\f[R] values.
-This means that the pseudo-random values from bc(1) should only be used
+This means that the pseudo-random values from dc(1) should only be used
 where a reproducible stream of pseudo-random numbers is
 \f[I]ESSENTIAL\f[R].
 In any other case, use a non-seeded pseudo-random number generator.
@@ -1159,7 +1172,7 @@ will be correctly parsed, but the string \f[B]\[lq]/home/gavin/some
 The quote parsing will handle either kind of quotes, \f[B]\[cq]\f[R] or
 \f[B]\[lq]\f[R]. Thus, if you have a file with any number of single
 quotes in the name, you can use double quotes as the outside quotes, as
-in \f[B]\[rq]some `bc' file.bc\[dq]\f[R], and vice versa if you have a
+in \f[B]\[rq]some `dc' file.dc\[dq]\f[R], and vice versa if you have a
 file with double quotes.
 However, handling a file with both kinds of quotes in
 \f[B]DC_ENV_ARGS\f[R] is not supported due to the complexity of the
diff --git a/contrib/bc/manuals/dc/P.1.md b/contrib/bc/manuals/dc/P.1.md
index 5d095faaa124..396a9873c517 100644
--- a/contrib/bc/manuals/dc/P.1.md
+++ b/contrib/bc/manuals/dc/P.1.md
@@ -98,8 +98,13 @@ The following are the options that dc(1) accepts.
     evaluated in the order given. This means that if a file is given before an
     expression, the file is read in and evaluated first.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**, whether on the
+    command-line or in **DC_ENV_ARGS**. However, if any other **-e**,
+    **--expression**, **-f**, or **--file** arguments are given after **-f-** or
+    equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -109,10 +114,12 @@ The following are the options that dc(1) accepts.
     through **stdin**. If expressions are also given (see above), the
     expressions are evaluated in the order given.
 
-    After processing all expressions and files, dc(1) will exit, unless **-**
-    (**stdin**) was given as an argument at least once to **-f** or **--file**.
-    However, if any other **-e**, **--expression**, **-f**, or **--file**
-    arguments are given after that, bc(1) will give a fatal error and exit.
+    If this option is given on the command-line (i.e., not in **DC_ENV_ARGS**,
+    see the **ENVIRONMENT VARIABLES** section), then after processing all
+    expressions and files, dc(1) will exit, unless **-** (**stdin**) was given
+    as an argument at least once to **-f** or **--file**. However, if any other
+    **-e**, **--expression**, **-f**, or **--file** arguments are given after
+    **-f-** or equivalent is given, dc(1) will give a fatal error and exit.
 
     This is a **non-portable extension**.
 
@@ -120,7 +127,9 @@ All long options are **non-portable extensions**.
 
 # STDOUT
 
-Any non-error output is written to **stdout**.
+Any non-error output is written to **stdout**. In addition, if history (see the
+**HISTORY** section) and the prompt (see the **TTY MODE** section) are enabled,
+both are output to **stdout**.
 
 **Note**: Unlike other dc(1) implementations, this dc(1) will issue a fatal
 error (see the **EXIT STATUS** section) if it cannot write to **stdout**, so if
@@ -195,7 +204,7 @@ command or the **"** command that does not get receive a value of **0** or
 **'** and **"** commands are guaranteed to **NOT** be cryptographically secure.
 This is a consequence of using a seeded pseudo-random number generator. However,
 they *are* guaranteed to be reproducible with identical **seed** values. This
-means that the pseudo-random values from bc(1) should only be used where a
+means that the pseudo-random values from dc(1) should only be used where a
 reproducible stream of pseudo-random numbers is *ESSENTIAL*. In any other case,
 use a non-seeded pseudo-random number generator.
 
@@ -1030,7 +1039,7 @@ dc(1) recognizes the following environment variables:
 
     The quote parsing will handle either kind of quotes, **'** or **"**. Thus,
     if you have a file with any number of single quotes in the name, you can use
-    double quotes as the outside quotes, as in **"some 'bc' file.bc"**, and vice
+    double quotes as the outside quotes, as in **"some 'dc' file.dc"**, and vice
     versa if you have a file with double quotes. However, handling a file with
     both kinds of quotes in **DC_ENV_ARGS** is not supported due to the
     complexity of the parsing, though such files are still supported on the
diff --git a/contrib/bc/manuals/header_bc.txt b/contrib/bc/manuals/header_bc.txt
index bf8f772b6e0f..91e60bd4a984 100644
--- a/contrib/bc/manuals/header_bc.txt
+++ b/contrib/bc/manuals/header_bc.txt
@@ -1 +1 @@
-.TH "BC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
diff --git a/contrib/bc/manuals/header_bcl.txt b/contrib/bc/manuals/header_bcl.txt
index a017f0670a79..290cc7794143 100644
--- a/contrib/bc/manuals/header_bcl.txt
+++ b/contrib/bc/manuals/header_bcl.txt
@@ -1 +1 @@
-.TH "BCL" "3" "January 2021" "Gavin D. Howard" "Libraries Manual"
+.TH "BCL" "3" "February 2021" "Gavin D. Howard" "Libraries Manual"
diff --git a/contrib/bc/manuals/header_dc.txt b/contrib/bc/manuals/header_dc.txt
index 656210eb0a3a..787d492b3066 100644
--- a/contrib/bc/manuals/header_dc.txt
+++ b/contrib/bc/manuals/header_dc.txt
@@ -1 +1 @@
-.TH "DC" "1" "January 2021" "Gavin D. Howard" "General Commands Manual"
+.TH "DC" "1" "February 2021" "Gavin D. Howard" "General Commands Manual"
diff --git a/contrib/bc/release.sh b/contrib/bc/release.sh
index 5f55c0f8acda..902f26ef4d33 100755
--- a/contrib/bc/release.sh
+++ b/contrib/bc/release.sh
@@ -575,7 +575,7 @@ if [ "$run_tests" -ne 0 ]; then
 		printf '\n'
 		printf '    <github_release> %s release.sh RELEASE.md\\\n' "$version"
 		printf '    tests/afl.py tests/radamsa.sh tests/radamsa.txt tests/randmath.py \\\n'
-		printf '    tests/bc/scripts/timeconst.bc\n'
+		printf '    tests/fuzzing/ tests/bc/scripts/timeconst.bc\n'
 
 	fi
 
diff --git a/contrib/bc/src/args.c b/contrib/bc/src/args.c
index b26062c6caec..9c26b7c18790 100644
--- a/contrib/bc/src/args.c
+++ b/contrib/bc/src/args.c
@@ -89,7 +89,7 @@ static void bc_args_file(const char *file) {
 	free(buf);
 }
 
-void bc_args(int argc, char *argv[]) {
+void bc_args(int argc, char *argv[], bool exit_exprs) {
 
 	int c;
 	size_t i;
@@ -109,6 +109,7 @@ void bc_args(int argc, char *argv[]) {
 				if (vm.no_exit_exprs)
 					bc_vm_verr(BC_ERR_FATAL_OPTION, "-e (--expression)");
 				bc_args_exprs(opts.optarg);
+				vm.exit_exprs = (exit_exprs || vm.exit_exprs);
 				break;
 			}
 
@@ -119,6 +120,7 @@ void bc_args(int argc, char *argv[]) {
 					if (vm.no_exit_exprs)
 						bc_vm_verr(BC_ERR_FATAL_OPTION, "-f (--file)");
 					bc_args_file(opts.optarg);
+					vm.exit_exprs = (exit_exprs || vm.exit_exprs);
 				}
 				break;
 			}
diff --git a/contrib/bc/src/vm.c b/contrib/bc/src/vm.c
index d363458bed58..87036c7b5c91 100644
--- a/contrib/bc/src/vm.c
+++ b/contrib/bc/src/vm.c
@@ -315,7 +315,7 @@ static void bc_vm_envArgs(const char* const env_args_name) {
 	buf = NULL;
 	bc_vec_push(&vm.env_args, &buf);
 
-	bc_args((int) vm.env_args.len - 1, bc_vec_item(&vm.env_args, 0));
+	bc_args((int) vm.env_args.len - 1, bc_vec_item(&vm.env_args, 0), false);
 }
 
 static size_t bc_vm_envLen(const char *var) {
@@ -820,7 +820,7 @@ static void bc_vm_exec(void) {
 
 		BC_SIG_UNLOCK;
 
-		if (!vm.no_exit_exprs) return;
+		if (!vm.no_exit_exprs && vm.exit_exprs) return;
 	}
 
 	for (i = 0; i < vm.files.len; ++i) {
@@ -905,7 +905,7 @@ void bc_vm_boot(int argc, char *argv[], const char *env_len,
 #endif // BC_ENABLED
 
 	bc_vm_envArgs(env_args);
-	bc_args(argc, argv);
+	bc_args(argc, argv, true);
 
 #if BC_ENABLED
 	if (BC_IS_POSIX) vm.flags &= ~(BC_FLAG_G);
diff --git a/contrib/bc/tests/script.sh b/contrib/bc/tests/script.sh
index acd68f6d9bc3..b7c707ac88bf 100755
--- a/contrib/bc/tests/script.sh
+++ b/contrib/bc/tests/script.sh
@@ -141,7 +141,7 @@ if [ -f "$orig" ]; then
 elif [ -f "$results" ]; then
 	res="$results"
 elif [ "$generate" -eq 0 ]; then
-	printf 'Skipping %s script %s\n' "$d" "$s"
+	printf 'Skipping %s script %s\n' "$d" "$f"
 	exit 0
 else
 	printf 'Generating %s results...' "$f"